19 January 2019

• 17:1917:19, 19 January 2019 diff hist +21 m 2016 AMC 12A Problems/Problem 17 →Solution 2

27 December 2018

• 11:0511:05, 27 December 2018 diff hist −2 m 2017 AMC 12A Problems/Problem 19 →Solution 18

26 March 2018

• 19:4619:46, 26 March 2018 diff hist +14 m 2018 AMC 10A Problems/Problem 20 →Solution 2
• 18:1618:16, 26 March 2018 diff hist −415 m 2018 AMC 10A Problems/Problem 4 →Solution 2

17 February 2018

• 16:5516:55, 17 February 2018 diff hist −34 m 2017 AMC 10A Problems/Problem 12 →See Also
• 16:5416:54, 17 February 2018 diff hist +34 m 2017 AMC 10A Problems/Problem 12 →See Also
• 16:4916:49, 17 February 2018 diff hist +20 m 2017 AMC 10A Problems/Problem 13 →Solution
• 16:4916:49, 17 February 2018 diff hist +1 m 2017 AMC 10A Problems/Problem 13 →Solution